Plow structure.



UNITED STATES PATENT OFFICE.

RUDOLPH JOSEPH ALTGELT, 0F SOUTH BEND, INDIANA., ASSIGNOR 'II'O `OLIVER CHILLED PLOW WORKS, 0F SOUTH BEND, INDIANA.

PLOW STRUCTURE.

Specification of Letters Patent.

Application filed September 29, 1917. Serial No. 193,970

'1 o au ll1/wm it may concern Be it known that I, RUDOLPH J. ALTGELT, a citizen of the United States, and a resident of South Bend, in the county of Saint Joseph and State of Indiana, have invented. certain new and useful Improvements in Plow Structures; and I do hereby `declare the following to be a full, clear, and exact description of the invention, `such asV will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in plow structures and more particularly 'to lifting and adjusting means therefor,-one 'object of' the invention being to provide simple and ecient means which may beelevation, and Figs. `3, 4, 5, 6 and 7 are dtails.

1 represents a 'plow frame which, in the structure shown in the drawing, comprises two beams 2, 3 provided at their rear ends with standards 4, to which plow bases 5 are Secrcd. The forward --mds of the beams are brought together und securely bolted. One of said beams extends forwardly beyond the other and is provided with a clevis 6 to which a shackle 7 is pivotally and adjustably attached by a horizontal pivot pin 8. This shackle is adjustably connected by a vertical pivot pin to a bracket 9 secured toga tractor or wheeled draft frame 10.

.The rear portion of the plow structure is supported on carrying wheels 11 and 12, through the medium of crank axles 13, 14 mounted in brackets 15, 16 secured to the beams of said plow structure. The sleeve or sand band 17 for the crank axle 13 and wheel 11 is extended inwardly from its connection with said crank axle, and provided at its inner ond with annular flanges Whereby a head 18 is forldcd.

The sleeve 17 constitutes. in effect. a partA ol' the crank axle l?, and above the head 18 of said sleeve, a jai-k structure 19 1s mounted on the beam 2 of the plow structure and is adapted to coperate with the headed end Patented May 21, 191s. l

of the sleeve 17 i of the crank axle 13 to raise the plow manually or to adjust the same for depth o f plowing.

he Jack structure 19 comprises a, bracket 20 securely bolted to the beam 2 and this bracket is formed with an open frame 21 having` guide openings at its upper and lower ends for the passage of a vertically movable bar 22,-'-the latter being provided at its lower end with a recessed head or enlargement 23 to engage the headed end of the sleeve 17 of the crank axle 13. The bar 22 is provided on each of its edges with ratchet teeth 24, 25 whereby said bar 22 is made to forma double ratchet bar.

Arms or members 26. 27 constituting the bifurcated end of a hand lever 28, are pivotally attached tw the upper portion of the frame 21 of brac/ret 20 and to these arms or lever members, dogs 29, 30, made in the form of U-shaped hails, are pivotal'ly attached and depend therefrom so as to engage, respectively, the ratchet teeth of the bar 22,--such engagement being insured by the action of .a spring 3l connecting sait1 dogs.

lower portion of the bar 22 and to this arm, the lower end of a spring 33 is attached", the upper end of` said spring being connected with an arm 34 at the upper end of the bracket frame 21 and tends to move the bar upwardly.

A shifting hun 35 is loosely' hung from the pivot pin, of the lever arm if and is disposed between tlle two dogs 29, 3U. The shiftinglink is provided with a laterally projecting pin 36, and a trigger 37 l projects over said pin and is provided with a notch 38 t'o receiie the same. The trigger 37 is ivotally attached to the hand lever 2S andl is maintained normally' out of en` gagcment with the pin 36 by means of a s )ring 39. A finger lever 40 is attached to llc handle end of the lever 28 and conuoc-temoin)v a rod 4l, with the trigger 37 for moving the laltor into engagement with the pin 36.

When it is desired to raise the plow structure by hand or to adjust the Same for leo the dogs to act alternately on the teeth of the respective sets of teeth on the bar 22, to ollcct the downward movement oi' said bar,-which latter by cooperation with the sleeve 17 oi the crank axle 13 will effect the raising of the plow.

To lowcr the plow structure, .upward movement of the bar 22 is necessary. To eil'etsuch upward movement of the lever, the operator will press the finger lever il() to cause the notched portion of the trigger 37 to engage the pin B6 of the shifting link andl then move the hand leg-'er 28 back and forth. The shiftinglinkl 35 will now be swung by the trigger and caused to move the dogs alternately out of engagement with the ratchet teeth/0f the bar 22, thus permit-A ting the spring 33L to move thebar 22 up` Wardly step-bystep. I do not, in this case, claim the means shown Vherein for raising the plow structure bypower lift means, nor the means for locking-up the plow structure,-these features being embodied in my copending applications Serial Nos. 193,968

,25, and 193,969 respectively;

` Various changes might be made in the details ot' construction of my invention without departing from the spirit thereof or limiting its scope and 4`hence I do not wish to restrict myself to the precise details herein set forth.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

l.. The combination with a plow structure, wheels therefor, andan axle mounted on the plow structure, of a bracket secured to the plow structure, a double ratchet bar vertically movable through said bracket and adapted to coperate with said axle, a hand lever pivoted to said bracket, pivoted spring actuated dogs hung on said lever for cooperation with said double .ratchet bar vto move the same in one direction vwhen tho hand lever is swung back and forth, means for discngaging said dogs from the ratchet bar, and a spring for moving said bar in the reverse direction.

The combination with a plow structure, wheels therefor, and crank axles for said wheels mounted on the plow structure, one of said axles comprising an inwardly projecting sleeve having a head at its :inner und, oi' a bracket secured lo the plow structure, a ratchet bar movable through Said bracket and having a recessed head to engage the head of'said axle sleeve, a hand lever pivoted to said bracket, spring-actuated dogs carried by said lever to engage the ratchet bar, a spring for moving said bar upwardly, and means for disengaging the dogs from the ratchet bar.

The combination witha bracket adapted to` be secured to a plow structure, of a double ratchet bar movable through said bracket and adapted to engage a part to raise. the plow structure, a hand lever pivoter] to said bracket, spring-actuated dogs hung on said hand lever and engaging the ratchet bar for moving said bar in one direction when the hand lever is moved back :and forth, a spring for moving said bar in :the other direction, a pivoted shifting link betiveizn said dogs, said link having a later- ,ally` project-ing part, a springsustained trigger pivot'ed to the hand lever, and means for moving said trigger into engagement with the lateral rejection on the shifting ljink to engage tlie dogs from"V the ratchet ar. ln testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

RUDOLPH JOSEPH ALTGELT.

Witnesses EDWIN NIGAR, CHARLESV A. WEBSTER. 

